root/include/linux/soundcard.h

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   1 #ifndef SOUNDCARD_H
   2 #define SOUNDCARD_H
   3 /*
   4  * Copyright by Hannu Savolainen 1993
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * 
  28  */
  29 
  30  /* 
  31   * If you make modifications to this file, please contact me before
  32   * distributing the modified version. There is already enough 
  33   * diversity in the world.
  34   *
  35   * Regards,
  36   * Hannu Savolainen
  37   * hannu@voxware.pp.fi
  38   *
  39   **********************************************************************
  40   * PS. The Hacker's Guide to VoxWare available from 
  41   *     nic.funet.fi:pub/OS/Linux/ALPHA/sound. The file is
  42   *     snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
  43   *     some useful information about programming with VoxWare.
  44   *     (NOTE! The pub/OS/Linux/ALPHA/ directories are hidden. You have
  45   *     to cd inside them before the files are accessible.)
  46   **********************************************************************
  47   */
  48 
  49 #define SOUND_VERSION   301
  50 #define VOXWARE
  51 
  52 #include <sys/ioctl.h>
  53 
  54 /*
  55  *      Supported card ID numbers (Should be somewhere else?)
  56  */
  57 
  58 #define SNDCARD_ADLIB           1
  59 #define SNDCARD_SB              2
  60 #define SNDCARD_PAS             3
  61 #define SNDCARD_GUS             4
  62 #define SNDCARD_MPU401          5
  63 #define SNDCARD_SB16            6
  64 #define SNDCARD_SB16MIDI        7
  65 #define SNDCARD_UART6850        8
  66 #define SNDCARD_GUS16           9
  67 #define SNDCARD_MSS             10
  68 #define SNDCARD_PSS             11
  69 #define SNDCARD_SSCAPE          12
  70 #define SNDCARD_PSS_MPU         13
  71 #define SNDCARD_PSS_MSS         14
  72 #define SNDCARD_SSCAPE_MSS      15
  73 #define SNDCARD_TRXPRO          16
  74 #define SNDCARD_TRXPRO_SB       17
  75 #define SNDCARD_TRXPRO_MPU      18
  76 #define SNDCARD_MAD16           19
  77 #define SNDCARD_MAD16_MPU       20
  78 #define SNDCARD_CS4232          21
  79 #define SNDCARD_CS4232_MPU      22
  80 #define SNDCARD_MAUI            23
  81 
  82 /***********************************
  83  * IOCTL Commands for /dev/sequencer
  84  */
  85 
  86 #ifndef _IOWR
  87 /*      @(#)ioctlp.h */
  88 
  89 /* Ioctl's have the command encoded in the lower word,
  90  * and the size of any in or out parameters in the upper
  91  * word.  The high 2 bits of the upper word are used
  92  * to encode the in/out status of the parameter; for now
  93  * we restrict parameters to at most 128 bytes.
  94  */
  95 /* #define      IOCTYPE         (0xff<<8) */
  96 #define IOCPARM_MASK    0x7f            /* parameters must be < 128 bytes */
  97 #define IOC_VOID        0x00000000      /* no parameters */
  98 #define IOC_OUT         0x20000000      /* copy out parameters */
  99 #define IOC_IN          0x40000000      /* copy in parameters */
 100 #define IOC_INOUT       (IOC_IN|IOC_OUT)
 101 /* the 0x20000000 is so we can distinguish new ioctl's from old */
 102 #define _IO(x,y)        ((int)(IOC_VOID|(x<<8)|y))
 103 #define _IOR(x,y,t)     ((int)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 104 #define _IOW(x,y,t)     ((int)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 105 /* this should be _IORW, but stdio got there first */
 106 #define _IOWR(x,y,t)    ((int)(IOC_INOUT|((sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y))
 107 #endif  /* !_IOWR */
 108 
 109 #define SNDCTL_SEQ_RESET                _IO  ('Q', 0)
 110 #define SNDCTL_SEQ_SYNC                 _IO  ('Q', 1)
 111 #define SNDCTL_SYNTH_INFO               _IOWR('Q', 2, struct synth_info)
 112 #define SNDCTL_SEQ_CTRLRATE             _IOWR('Q', 3, int)      /* Set/get timer resolution (HZ) */
 113 #define SNDCTL_SEQ_GETOUTCOUNT          _IOR ('Q', 4, int)
 114 #define SNDCTL_SEQ_GETINCOUNT           _IOR ('Q', 5, int)
 115 #define SNDCTL_SEQ_PERCMODE             _IOW ('Q', 6, int)
 116 #define SNDCTL_FM_LOAD_INSTR            _IOW ('Q', 7, struct sbi_instrument)    /* Valid for FM only */
 117 #define SNDCTL_SEQ_TESTMIDI             _IOW ('Q', 8, int)
 118 #define SNDCTL_SEQ_RESETSAMPLES         _IOW ('Q', 9, int)
 119 #define SNDCTL_SEQ_NRSYNTHS             _IOR ('Q',10, int)
 120 #define SNDCTL_SEQ_NRMIDIS              _IOR ('Q',11, int)
 121 #define SNDCTL_MIDI_INFO                _IOWR('Q',12, struct midi_info)
 122 #define SNDCTL_SEQ_THRESHOLD            _IOW ('Q',13, int)
 123 #define SNDCTL_SEQ_TRESHOLD             SNDCTL_SEQ_THRESHOLD    /* there was once a typo */
 124 #define SNDCTL_SYNTH_MEMAVL             _IOWR('Q',14, int)      /* in=dev#, out=memsize */
 125 #define SNDCTL_FM_4OP_ENABLE            _IOW ('Q',15, int)      /* in=dev# */
 126 #define SNDCTL_PMGR_ACCESS              _IOWR('Q',16, struct patmgr_info)
 127 #define SNDCTL_SEQ_PANIC                _IO  ('Q',17)
 128 #define SNDCTL_SEQ_OUTOFBAND            _IOW ('Q',18, struct seq_event_rec)
 129 
 130         struct seq_event_rec {
 131                         unsigned char arr[8];
 132                 };
 133 
 134 #define SNDCTL_TMR_TIMEBASE             _IOWR('T', 1, int)
 135 #define SNDCTL_TMR_START                _IO  ('T', 2)
 136 #define SNDCTL_TMR_STOP                 _IO  ('T', 3)
 137 #define SNDCTL_TMR_CONTINUE             _IO  ('T', 4)
 138 #define SNDCTL_TMR_TEMPO                _IOWR('T', 5, int)
 139 #define SNDCTL_TMR_SOURCE               _IOWR('T', 6, int)
 140 #       define TMR_INTERNAL             0x00000001
 141 #       define TMR_EXTERNAL             0x00000002
 142 #               define TMR_MODE_MIDI    0x00000010
 143 #               define TMR_MODE_FSK     0x00000020
 144 #               define TMR_MODE_CLS     0x00000040
 145 #               define TMR_MODE_SMPTE   0x00000080
 146 #define SNDCTL_TMR_METRONOME            _IOW ('T', 7, int)
 147 #define SNDCTL_TMR_SELECT               _IOW ('T', 8, int)
 148 
 149 /*
 150  *      Sample loading mechanism for internal synthesizers (/dev/sequencer)
 151  *      The following patch_info structure has been designed to support
 152  *      Gravis UltraSound. It tries to be universal format for uploading
 153  *      sample based patches but is propably too limited.
 154  */
 155 
 156 struct patch_info {
 157                 short key;              /* Use GUS_PATCH here */
 158 #define GUS_PATCH       0x04fd
 159 #define OBSOLETE_GUS_PATCH      0x02fd
 160                 short device_no;        /* Synthesizer number */
 161                 short instr_no;         /* Midi pgm# */
 162 
 163                 unsigned long mode;
 164 /*
 165  * The least significant byte has the same format than the GUS .PAT
 166  * files
 167  */
 168 #define WAVE_16_BITS    0x01    /* bit 0 = 8 or 16 bit wave data. */
 169 #define WAVE_UNSIGNED   0x02    /* bit 1 = Signed - Unsigned data. */
 170 #define WAVE_LOOPING    0x04    /* bit 2 = looping enabled-1. */
 171 #define WAVE_BIDIR_LOOP 0x08    /* bit 3 = Set is bidirectional looping. */
 172 #define WAVE_LOOP_BACK  0x10    /* bit 4 = Set is looping backward. */
 173 #define WAVE_SUSTAIN_ON 0x20    /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
 174 #define WAVE_ENVELOPES  0x40    /* bit 6 = Enable envelopes - 1 */
 175                                 /*      (use the env_rate/env_offs fields). */
 176 /* Linux specific bits */
 177 #define WAVE_VIBRATO    0x00010000      /* The vibrato info is valid */
 178 #define WAVE_TREMOLO    0x00020000      /* The tremolo info is valid */
 179 #define WAVE_SCALE      0x00040000      /* The scaling info is valid */
 180 /* Other bits must be zeroed */
 181 
 182                 long len;       /* Size of the wave data in bytes */
 183                 long loop_start, loop_end; /* Byte offsets from the beginning */
 184 
 185 /* 
 186  * The base_freq and base_note fields are used when computing the
 187  * playback speed for a note. The base_note defines the tone frequency
 188  * which is heard if the sample is played using the base_freq as the
 189  * playback speed.
 190  *
 191  * The low_note and high_note fields define the minimum and maximum note
 192  * frequencies for which this sample is valid. It is possible to define
 193  * more than one samples for a instrument number at the same time. The
 194  * low_note and high_note fields are used to select the most suitable one.
 195  *
 196  * The fields base_note, high_note and low_note should contain
 197  * the note frequency multiplied by 1000. For example value for the
 198  * middle A is 440*1000.
 199  */
 200 
 201                 unsigned int base_freq;
 202                 unsigned long base_note;
 203                 unsigned long high_note;
 204                 unsigned long low_note;
 205                 int panning;    /* -128=left, 127=right */
 206                 int detuning;
 207 
 208 /*      New fields introduced in version 1.99.5 */
 209 
 210        /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
 211                 unsigned char   env_rate[ 6 ];   /* GUS HW ramping rate */
 212                 unsigned char   env_offset[ 6 ]; /* 255 == 100% */
 213 
 214         /* 
 215          * The tremolo, vibrato and scale info are not supported yet.
 216          * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
 217          * WAVE_SCALE
 218          */
 219 
 220                 unsigned char   tremolo_sweep;
 221                 unsigned char   tremolo_rate;
 222                 unsigned char   tremolo_depth;
 223         
 224                 unsigned char   vibrato_sweep;
 225                 unsigned char   vibrato_rate;
 226                 unsigned char   vibrato_depth;
 227 
 228                 int             scale_frequency;
 229                 unsigned int    scale_factor;           /* from 0 to 2048 or 0 to 2 */
 230         
 231                 int             volume;
 232                 int             spare[4];
 233                 char data[1];   /* The waveform data starts here */
 234         };
 235 
 236 struct sysex_info {
 237                 short key;              /* Use GUS_PATCH here */
 238 #define SYSEX_PATCH     0x05fd
 239 #define MAUI_PATCH      0x06fd          /* For future use */
 240                 short device_no;        /* Synthesizer number */
 241                 long len;       /* Size of the sysex data in bytes */
 242                 unsigned char data[1];  /* Sysex data starts here */
 243         };
 244 
 245 /*
 246  * Patch management interface (/dev/sequencer, /dev/patmgr#)
 247  * Don't use these calls if you want to maintain compatibility with
 248  * the future versions of the driver.
 249  */
 250 
 251 #define         PS_NO_PATCHES           0       /* No patch support on device */
 252 #define         PS_MGR_NOT_OK           1       /* Plain patch support (no mgr) */
 253 #define         PS_MGR_OK               2       /* Patch manager supported */
 254 #define         PS_MANAGED              3       /* Patch manager running */
 255 
 256 #define SNDCTL_PMGR_IFACE               _IOWR('P', 1, struct patmgr_info)
 257 
 258 /*
 259  * The patmgr_info is a fixed size structure which is used for two
 260  * different purposes. The intended use is for communication between
 261  * the application using /dev/sequencer and the patch manager daemon
 262  * associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
 263  *
 264  * This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
 265  * a patch manager daemon to read and write device parameters. This
 266  * ioctl available through /dev/sequencer also. Avoid using it since it's
 267  * extremely hardware dependent. In addition access trough /dev/sequencer 
 268  * may confuse the patch manager daemon.
 269  */
 270 
 271 struct patmgr_info {    /* Note! size must be < 4k since kmalloc() is used */
 272           unsigned long key;    /* Don't worry. Reserved for communication
 273                                    between the patch manager and the driver. */
 274 #define PM_K_EVENT              1 /* Event from the /dev/sequencer driver */
 275 #define PM_K_COMMAND            2 /* Request from a application */
 276 #define PM_K_RESPONSE           3 /* From patmgr to application */
 277 #define PM_ERROR                4 /* Error returned by the patmgr */
 278           int device;
 279           int command;
 280 
 281 /* 
 282  * Commands 0x000 to 0xfff reserved for patch manager programs 
 283  */
 284 #define PM_GET_DEVTYPE  1       /* Returns type of the patch mgr interface of dev */
 285 #define         PMTYPE_FM2      1       /* 2 OP fm */
 286 #define         PMTYPE_FM4      2       /* Mixed 4 or 2 op FM (OPL-3) */
 287 #define         PMTYPE_WAVE     3       /* Wave table synthesizer (GUS) */
 288 #define PM_GET_NRPGM    2       /* Returns max # of midi programs in parm1 */
 289 #define PM_GET_PGMMAP   3       /* Returns map of loaded midi programs in data8 */
 290 #define PM_GET_PGM_PATCHES 4    /* Return list of patches of a program (parm1) */
 291 #define PM_GET_PATCH    5       /* Return patch header of patch parm1 */
 292 #define PM_SET_PATCH    6       /* Set patch header of patch parm1 */
 293 #define PM_READ_PATCH   7       /* Read patch (wave) data */
 294 #define PM_WRITE_PATCH  8       /* Write patch (wave) data */
 295 
 296 /*
 297  * Commands 0x1000 to 0xffff are for communication between the patch manager
 298  * and the client
 299  */
 300 #define _PM_LOAD_PATCH  0x100
 301 
 302 /* 
 303  * Commands above 0xffff reserved for device specific use
 304  */
 305 
 306           long parm1;
 307           long parm2;
 308           long parm3;
 309 
 310           union {
 311                 unsigned char data8[4000];
 312                 unsigned short data16[2000];
 313                 unsigned long data32[1000];
 314                 struct patch_info patch;
 315           } data;
 316         };
 317 
 318 /*
 319  * When a patch manager daemon is present, it will be informed by the
 320  * driver when something important happens. For example when the
 321  * /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
 322  * returned. The command field contains the event type:
 323  */
 324 #define PM_E_OPENED             1       /* /dev/sequencer opened */
 325 #define PM_E_CLOSED             2       /* /dev/sequencer closed */
 326 #define PM_E_PATCH_RESET        3       /* SNDCTL_RESETSAMPLES called */
 327 #define PM_E_PATCH_LOADED       4       /* A patch has been loaded by appl */
 328 
 329 /*
 330  * /dev/sequencer input events.
 331  *
 332  * The data written to the /dev/sequencer is a stream of events. Events
 333  * are records of 4 or 8 bytes. The first byte defines the size. 
 334  * Any number of events can be written with a write call. There
 335  * is a set of macros for sending these events. Use these macros if you
 336  * want to maximize portability of your program.
 337  *
 338  * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
 339  * (All input events are currently 4 bytes long. Be prepared to support
 340  * 8 byte events also. If you receive any event having first byte >= 128,
 341  * it's a 8 byte event.
 342  *
 343  * The events are documented at the end of this file.
 344  *
 345  * Normal events (4 bytes)
 346  * There is also a 8 byte version of most of the 4 byte events. The
 347  * 8 byte one is recommended.
 348  */
 349 #define SEQ_NOTEOFF             0
 350 #define SEQ_FMNOTEOFF           SEQ_NOTEOFF     /* Just old name */
 351 #define SEQ_NOTEON              1
 352 #define SEQ_FMNOTEON            SEQ_NOTEON
 353 #define SEQ_WAIT                TMR_WAIT_ABS
 354 #define SEQ_PGMCHANGE           3
 355 #define SEQ_FMPGMCHANGE         SEQ_PGMCHANGE
 356 #define SEQ_SYNCTIMER           TMR_START
 357 #define SEQ_MIDIPUTC            5
 358 #define SEQ_DRUMON              6       /*** OBSOLETE ***/
 359 #define SEQ_DRUMOFF             7       /*** OBSOLETE ***/
 360 #define SEQ_ECHO                TMR_ECHO        /* For synching programs with output */
 361 #define SEQ_AFTERTOUCH          9
 362 #define SEQ_CONTROLLER          10
 363 
 364 /*******************************************
 365  *      Midi controller numbers
 366  *******************************************
 367  * Controllers 0 to 31 (0x00 to 0x1f) and
 368  * 32 to 63 (0x20 to 0x3f) are continuous
 369  * controllers.
 370  * In the MIDI 1.0 these controllers are sent using
 371  * two messages. Controller numbers 0 to 31 are used
 372  * to send the MSB and the controller numbers 32 to 63
 373  * are for the LSB. Note that just 7 bits are used in MIDI bytes.
 374  */
 375 
 376 #define    CTL_BANK_SELECT              0x00
 377 #define    CTL_MODWHEEL                 0x01
 378 #define    CTL_BREATH                   0x02
 379 /*              undefined               0x03 */
 380 #define    CTL_FOOT                     0x04
 381 #define    CTL_PORTAMENTO_TIME          0x05
 382 #define    CTL_DATA_ENTRY               0x06
 383 #define    CTL_MAIN_VOLUME              0x07
 384 #define    CTL_BALANCE                  0x08
 385 /*              undefined               0x09 */
 386 #define    CTL_PAN                      0x0a
 387 #define    CTL_EXPRESSION               0x0b
 388 /*              undefined               0x0c */
 389 /*              undefined               0x0d */
 390 /*              undefined               0x0e */
 391 /*              undefined               0x0f */
 392 #define    CTL_GENERAL_PURPOSE1 0x10
 393 #define    CTL_GENERAL_PURPOSE2 0x11
 394 #define    CTL_GENERAL_PURPOSE3 0x12
 395 #define    CTL_GENERAL_PURPOSE4 0x13
 396 /*              undefined               0x14 - 0x1f */
 397 
 398 /*              undefined               0x20 */
 399 /* The controller numbers 0x21 to 0x3f are reserved for the */
 400 /* least significant bytes of the controllers 0x00 to 0x1f. */
 401 /* These controllers are not recognised by the driver. */
 402 
 403 /* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
 404 /* 0=OFF and 127=ON (intermediate values are possible) */
 405 #define    CTL_DAMPER_PEDAL             0x40
 406 #define    CTL_SUSTAIN                  0x40    /* Alias */
 407 #define    CTL_HOLD                     0x40    /* Alias */
 408 #define    CTL_PORTAMENTO               0x41
 409 #define    CTL_SOSTENUTO                0x42
 410 #define    CTL_SOFT_PEDAL               0x43
 411 /*              undefined               0x44 */
 412 #define    CTL_HOLD2                    0x45
 413 /*              undefined               0x46 - 0x4f */
 414 
 415 #define    CTL_GENERAL_PURPOSE5 0x50
 416 #define    CTL_GENERAL_PURPOSE6 0x51
 417 #define    CTL_GENERAL_PURPOSE7 0x52
 418 #define    CTL_GENERAL_PURPOSE8 0x53
 419 /*              undefined               0x54 - 0x5a */
 420 #define    CTL_EXT_EFF_DEPTH            0x5b
 421 #define    CTL_TREMOLO_DEPTH            0x5c
 422 #define    CTL_CHORUS_DEPTH             0x5d
 423 #define    CTL_DETUNE_DEPTH             0x5e
 424 #define    CTL_CELESTE_DEPTH            0x5e    /* Alias for the above one */
 425 #define    CTL_PHASER_DEPTH             0x5f
 426 #define    CTL_DATA_INCREMENT           0x60
 427 #define    CTL_DATA_DECREMENT           0x61
 428 #define    CTL_NONREG_PARM_NUM_LSB      0x62
 429 #define    CTL_NONREG_PARM_NUM_MSB      0x63
 430 #define    CTL_REGIST_PARM_NUM_LSB      0x64
 431 #define    CTL_REGIST_PARM_NUM_MSB      0x65
 432 /*              undefined               0x66 - 0x78 */
 433 /*              reserved                0x79 - 0x7f */
 434 
 435 /* Pseudo controllers (not midi compatible) */
 436 #define    CTRL_PITCH_BENDER            255
 437 #define    CTRL_PITCH_BENDER_RANGE      254
 438 #define    CTRL_EXPRESSION              253     /* Obsolete */
 439 #define    CTRL_MAIN_VOLUME             252     /* Obsolete */
 440 #define SEQ_BALANCE             11
 441 #define SEQ_VOLMODE             12
 442 
 443 /*
 444  * Volume mode decides how volumes are used
 445  */
 446 
 447 #define VOL_METHOD_ADAGIO       1
 448 #define VOL_METHOD_LINEAR       2
 449 
 450 /*
 451  * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
 452  *       input events.
 453  */
 454 
 455 /*
 456  * Event codes 0xf0 to 0xfc are reserved for future extensions.
 457  */
 458 
 459 #define SEQ_FULLSIZE            0xfd    /* Long events */
 460 /*
 461  *      SEQ_FULLSIZE events are used for loading patches/samples to the
 462  *      synthesizer devices. These events are passed directly to the driver
 463  *      of the associated synthesizer device. There is no limit to the size
 464  *      of the extended events. These events are not queued but executed
 465  *      immediately when the write() is called (execution can take several
 466  *      seconds of time). 
 467  *
 468  *      When a SEQ_FULLSIZE message is written to the device, it must
 469  *      be written using exactly one write() call. Other events cannot
 470  *      be mixed to the same write.
 471  *      
 472  *      For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the 
 473  *      /dev/sequencer. Don't write other data together with the instrument structure
 474  *      Set the key field of the structure to FM_PATCH. The device field is used to
 475  *      route the patch to the corresponding device.
 476  *
 477  *      For Gravis UltraSound use struct patch_info. Initialize the key field
 478  *      to GUS_PATCH.
 479  */
 480 #define SEQ_PRIVATE             0xfe    /* Low level HW dependent events (8 bytes) */
 481 #define SEQ_EXTENDED            0xff    /* Extended events (8 bytes) OBSOLETE */
 482 
 483 /*
 484  * Record for FM patches
 485  */
 486 
 487 typedef unsigned char sbi_instr_data[32];
 488 
 489 struct sbi_instrument {
 490                 unsigned short  key;            /*      Initialize to FM_PATCH or OPL3_PATCH */
 491 #define FM_PATCH        0x01fd
 492 #define OPL3_PATCH      0x03fd
 493                 short           device;         /*      Synth# (0-4)    */
 494                 int             channel;        /*      Program# to be initialized      */
 495                 sbi_instr_data  operators;      /*      Register settings for operator cells (.SBI format)      */
 496         };
 497 
 498 struct synth_info {     /* Read only */
 499                 char    name[30];
 500                 int     device;         /* 0-N. INITIALIZE BEFORE CALLING */
 501                 int     synth_type;
 502 #define SYNTH_TYPE_FM                   0
 503 #define SYNTH_TYPE_SAMPLE               1
 504 #define SYNTH_TYPE_MIDI                 2       /* Midi interface */
 505 
 506                 int     synth_subtype;
 507 #define FM_TYPE_ADLIB                   0x00
 508 #define FM_TYPE_OPL3                    0x01
 509 
 510 #define SAMPLE_TYPE_GUS                 0x10
 511 
 512                 int     perc_mode;      /* No longer supported */
 513                 int     nr_voices;
 514                 int     nr_drums;       /* Obsolete field */
 515                 int     instr_bank_size;
 516                 unsigned long   capabilities;   
 517 #define SYNTH_CAP_PERCMODE              0x00000001 /* No longer used */
 518 #define SYNTH_CAP_OPL3                  0x00000002 /* Set if OPL3 supported */
 519 #define SYNTH_CAP_INPUT                 0x00000004 /* Input (MIDI) device */
 520                 int     dummies[19];    /* Reserve space */
 521         };
 522 
 523 struct sound_timer_info {
 524                 char name[32];
 525                 int caps;
 526         };
 527 
 528 #define MIDI_CAP_MPU401         1               /* MPU-401 intelligent mode */
 529 
 530 struct midi_info {
 531                 char            name[30];
 532                 int             device;         /* 0-N. INITIALIZE BEFORE CALLING */
 533                 unsigned long   capabilities;   /* To be defined later */
 534                 int             dev_type;
 535                 int             dummies[18];    /* Reserve space */
 536         };
 537 
 538 /********************************************
 539  * ioctl commands for the /dev/midi##
 540  */
 541 typedef struct {
 542                 unsigned char cmd;
 543                 char nr_args, nr_returns;
 544                 unsigned char data[30];
 545         } mpu_command_rec;
 546 
 547 #define SNDCTL_MIDI_PRETIME             _IOWR('m', 0, int)
 548 #define SNDCTL_MIDI_MPUMODE             _IOWR('m', 1, int)
 549 #define SNDCTL_MIDI_MPUCMD              _IOWR('m', 2, mpu_command_rec)
 550 
 551 /********************************************
 552  * IOCTL commands for /dev/dsp and /dev/audio
 553  */
 554 
 555 #define SNDCTL_DSP_RESET                _IO  ('P', 0)
 556 #define SNDCTL_DSP_SYNC                 _IO  ('P', 1)
 557 #define SNDCTL_DSP_SPEED                _IOWR('P', 2, int)
 558 #define SNDCTL_DSP_STEREO               _IOWR('P', 3, int)
 559 #define SNDCTL_DSP_GETBLKSIZE           _IOWR('P', 4, int)
 560 #define SNDCTL_DSP_SAMPLESIZE           SNDCTL_DSP_SETFMT
 561 #define SOUND_PCM_WRITE_CHANNELS        _IOWR('P', 6, int)
 562 #define SOUND_PCM_WRITE_FILTER          _IOWR('P', 7, int)
 563 #define SNDCTL_DSP_POST                 _IO  ('P', 8)
 564 #define SNDCTL_DSP_SUBDIVIDE            _IOWR('P', 9, int)
 565 #define SNDCTL_DSP_SETFRAGMENT          _IOWR('P',10, int)
 566 
 567 /*      Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
 568 #define SNDCTL_DSP_GETFMTS              _IOR ('P',11, int) /* Returns a mask */
 569 #define SNDCTL_DSP_SETFMT               _IOWR('P',5, int) /* Selects ONE fmt*/
 570 #       define AFMT_QUERY               0x00000000      /* Return current fmt */
 571 #       define AFMT_MU_LAW              0x00000001
 572 #       define AFMT_A_LAW               0x00000002
 573 #       define AFMT_IMA_ADPCM           0x00000004
 574 #       define AFMT_U8                  0x00000008
 575 #       define AFMT_S16_LE              0x00000010      /* Little endian signed 16*/
 576 #       define AFMT_S16_BE              0x00000020      /* Big endian signed 16 */
 577 #       define AFMT_S8                  0x00000040
 578 #       define AFMT_U16_LE              0x00000080      /* Little endian U16 */
 579 #       define AFMT_U16_BE              0x00000100      /* Big endian U16 */
 580 #       define AFMT_MPEG                0x00000200      /* MPEG (2) audio */
 581 
 582 /*
 583  * Buffer status queries.
 584  */
 585 typedef struct audio_buf_info {
 586                         int fragments;  /* # of available fragments (partially usend ones not counted) */
 587                         int fragstotal; /* Total # of fragments allocated */
 588                         int fragsize;   /* Size of a fragment in bytes */
 589 
 590                         int bytes;      /* Available space in bytes (includes partially used fragments) */
 591                         /* Note! 'bytes' could be more than fragments*fragsize */
 592                 } audio_buf_info;
 593 
 594 #define SNDCTL_DSP_GETOSPACE            _IOR ('P',12, audio_buf_info)
 595 #define SNDCTL_DSP_GETISPACE            _IOR ('P',13, audio_buf_info)
 596 #define SNDCTL_DSP_NONBLOCK             _IO  ('P',14)
 597 #define SNDCTL_DSP_GETCAPS              _IOR ('P',15, int)
 598 #       define DSP_CAP_REVISION         0x000000ff      /* Bits for revision level (0 to 255) */
 599 #       define DSP_CAP_DUPLEX           0x00000100      /* Full duplex record/playback */
 600 #       define DSP_CAP_REALTIME         0x00000200      /* Real time capability */
 601 #       define DSP_CAP_BATCH            0x00000400      /* Device has some kind of */
 602                                                         /* internal buffers which may */
 603                                                         /* cause some delays and */
 604                                                         /* decrease precision of timing */
 605 #       define DSP_CAP_COPROC           0x00000800      /* Has a coprocessor */
 606                                                         /* Sometimes it's a DSP */
 607                                                         /* but usually not */
 608 #       define DSP_CAP_TRIGGER          0x00001000      /* Supports SETTRIGGER */
 609 
 610 #define SNDCTL_DSP_GETTRIGGER           _IOR ('P',16, int)
 611 #define SNDCTL_DSP_SETTRIGGER           _IOW ('P',16, int)
 612 #       define PCM_ENABLE_INPUT         0x00000001
 613 #       define PCM_ENABLE_OUTPUT        0x00000002
 614 
 615 typedef struct count_info {
 616                 int bytes;      /* Total # of bytes processed */
 617                 int blocks;     /* # of fragment transitions since last time */
 618                 int ptr;        /* Current DMA pointer value */
 619         } count_info;
 620 
 621 #define SNDCTL_DSP_GETIPTR              _IOR ('P',17, count_info)
 622 #define SNDCTL_DSP_GETOPTR              _IOR ('P',18, count_info)
 623 
 624 typedef struct buffmem_desc {
 625                 caddr_t buffer;
 626                 int size;
 627         } buffmem_desc;
 628 #define SNDCTL_DSP_MAPINBUF             _IOR ('P', 19, buffmem_desc)
 629 #define SNDCTL_DSP_MAPOUTBUF            _IOR ('P', 20, buffmem_desc)
 630 
 631 #define SOUND_PCM_READ_RATE             _IOR ('P', 2, int)
 632 #define SOUND_PCM_READ_CHANNELS         _IOR ('P', 6, int)
 633 #define SOUND_PCM_READ_BITS             _IOR ('P', 5, int)
 634 #define SOUND_PCM_READ_FILTER           _IOR ('P', 7, int)
 635 
 636 /* Some alias names */
 637 #define SOUND_PCM_WRITE_BITS            SNDCTL_DSP_SETFMT
 638 #define SOUND_PCM_WRITE_RATE            SNDCTL_DSP_SPEED
 639 #define SOUND_PCM_POST                  SNDCTL_DSP_POST
 640 #define SOUND_PCM_RESET                 SNDCTL_DSP_RESET
 641 #define SOUND_PCM_SYNC                  SNDCTL_DSP_SYNC
 642 #define SOUND_PCM_SUBDIVIDE             SNDCTL_DSP_SUBDIVIDE
 643 #define SOUND_PCM_SETFRAGMENT           SNDCTL_DSP_SETFRAGMENT
 644 #define SOUND_PCM_GETFMTS               SNDCTL_DSP_GETFMTS
 645 #define SOUND_PCM_SETFMT                SNDCTL_DSP_SETFMT
 646 #define SOUND_PCM_GETOSPACE             SNDCTL_DSP_GETOSPACE
 647 #define SOUND_PCM_GETISPACE             SNDCTL_DSP_GETISPACE
 648 #define SOUND_PCM_NONBLOCK              SNDCTL_DSP_NONBLOCK
 649 #define SOUND_PCM_GETCAPS               SNDCTL_DSP_GETCAPS
 650 #define SOUND_PCM_GETTRIGGER            SNDCTL_DSP_GETTRIGGER
 651 #define SOUND_PCM_SETTRIGGER            SNDCTL_DSP_SETTRIGGER
 652 #define SOUND_PCM_GETIPTR               SNDCTL_DSP_GETIPTR
 653 #define SOUND_PCM_GETOPTR               SNDCTL_DSP_GETOPTR
 654 #define SOUND_PCM_MAPINBUF              SNDCTL_DSP_MAPINBUF
 655 #define SOUND_PCM_MAPOUTBUF             SNDCTL_DSP_MAPOUTBUF
 656 
 657 /*
 658  * ioctl calls to be used in communication with coprocessors and
 659  * DSP chips.
 660  */
 661 
 662 typedef struct copr_buffer {
 663                 int command;    /* Set to 0 if not used */
 664                 int flags;
 665 #define CPF_NONE                0x0000
 666 #define CPF_FIRST               0x0001  /* First block */
 667 #define CPF_LAST                0x0002  /* Last block */
 668                 int len;
 669                 int offs;       /* If required by the device (0 if not used) */
 670 
 671                 unsigned char data[4000]; /* NOTE! 4000 is not 4k */
 672         } copr_buffer;
 673 
 674 typedef struct copr_debug_buf {
 675                 int command;    /* Used internally. Set to 0 */
 676                 int parm1;
 677                 int parm2;
 678                 int flags;      
 679                 int len;        /* Length of data in bytes */
 680         } copr_debug_buf;
 681 
 682 typedef struct copr_msg {
 683                 int len;
 684                 unsigned char data[4000];
 685         } copr_msg;
 686 
 687 #define SNDCTL_COPR_RESET             _IO  ('C',  0)
 688 #define SNDCTL_COPR_LOAD              _IOWR('C',  1, copr_buffer)
 689 #define SNDCTL_COPR_RDATA             _IOWR('C',  2, copr_debug_buf)
 690 #define SNDCTL_COPR_RCODE             _IOWR('C',  3, copr_debug_buf)
 691 #define SNDCTL_COPR_WDATA             _IOW ('C',  4, copr_debug_buf)
 692 #define SNDCTL_COPR_WCODE             _IOW ('C',  5, copr_debug_buf)
 693 #define SNDCTL_COPR_RUN               _IOWR('C',  6, copr_debug_buf)
 694 #define SNDCTL_COPR_HALT              _IOWR('C',  7, copr_debug_buf)
 695 #define SNDCTL_COPR_SENDMSG           _IOW ('C',  8, copr_msg)
 696 #define SNDCTL_COPR_RCVMSG            _IOR ('C',  9, copr_msg)
 697 
 698 /*********************************************
 699  * IOCTL commands for /dev/mixer
 700  */
 701         
 702 /* 
 703  * Mixer devices
 704  *
 705  * There can be up to 20 different analog mixer channels. The
 706  * SOUND_MIXER_NRDEVICES gives the currently supported maximum. 
 707  * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 708  * the devices supported by the particular mixer.
 709  */
 710 
 711 #define SOUND_MIXER_NRDEVICES   17
 712 #define SOUND_MIXER_VOLUME      0
 713 #define SOUND_MIXER_BASS        1
 714 #define SOUND_MIXER_TREBLE      2
 715 #define SOUND_MIXER_SYNTH       3
 716 #define SOUND_MIXER_PCM         4
 717 #define SOUND_MIXER_SPEAKER     5
 718 #define SOUND_MIXER_LINE        6
 719 #define SOUND_MIXER_MIC         7
 720 #define SOUND_MIXER_CD          8
 721 #define SOUND_MIXER_IMIX        9       /*  Recording monitor  */
 722 #define SOUND_MIXER_ALTPCM      10
 723 #define SOUND_MIXER_RECLEV      11      /* Recording level */
 724 #define SOUND_MIXER_IGAIN       12      /* Input gain */
 725 #define SOUND_MIXER_OGAIN       13      /* Output gain */
 726 /* 
 727  * The AD1848 codec and compatibles have three line level inputs
 728  * (line, aux1 and aux2). Since each card manufacturer have assigned
 729  * different meanings to these inputs, it's inpractical to assign
 730  * specific meanings (line, cd, synth etc.) to them.
 731  */
 732 #define SOUND_MIXER_LINE1       14      /* Input source 1  (aux1) */
 733 #define SOUND_MIXER_LINE2       15      /* Input source 2  (aux2) */
 734 #define SOUND_MIXER_LINE3       16      /* Input source 3  (line) */
 735 
 736 /* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
 737 /* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
 738 #define SOUND_ONOFF_MIN         28
 739 #define SOUND_ONOFF_MAX         30
 740 #define SOUND_MIXER_MUTE        28      /* 0 or 1 */
 741 #define SOUND_MIXER_ENHANCE     29      /* Enhanced stereo (0, 40, 60 or 80) */
 742 #define SOUND_MIXER_LOUD        30      /* 0 or 1 */
 743 
 744 /* Note!        Number 31 cannot be used since the sign bit is reserved */
 745 
 746 #define SOUND_DEVICE_LABELS     {"Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
 747                                  "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
 748                                  "Line1", "Line2", "Line3"}
 749 
 750 #define SOUND_DEVICE_NAMES      {"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
 751                                  "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
 752                                  "line1", "line2", "line3"}
 753 
 754 /*      Device bitmask identifiers      */
 755 
 756 #define SOUND_MIXER_RECSRC      0xff    /* Arg contains a bit for each recording source */
 757 #define SOUND_MIXER_DEVMASK     0xfe    /* Arg contains a bit for each supported device */
 758 #define SOUND_MIXER_RECMASK     0xfd    /* Arg contains a bit for each supported recording source */
 759 #define SOUND_MIXER_CAPS        0xfc
 760 #       define SOUND_CAP_EXCL_INPUT     0x00000001      /* Only one recording source at a time */
 761 #define SOUND_MIXER_STEREODEVS  0xfb    /* Mixer channels supporting stereo */
 762 
 763 /*      Device mask bits        */
 764 
 765 #define SOUND_MASK_VOLUME       (1 << SOUND_MIXER_VOLUME)
 766 #define SOUND_MASK_BASS         (1 << SOUND_MIXER_BASS)
 767 #define SOUND_MASK_TREBLE       (1 << SOUND_MIXER_TREBLE)
 768 #define SOUND_MASK_SYNTH        (1 << SOUND_MIXER_SYNTH)
 769 #define SOUND_MASK_PCM          (1 << SOUND_MIXER_PCM)
 770 #define SOUND_MASK_SPEAKER      (1 << SOUND_MIXER_SPEAKER)
 771 #define SOUND_MASK_LINE         (1 << SOUND_MIXER_LINE)
 772 #define SOUND_MASK_MIC          (1 << SOUND_MIXER_MIC)
 773 #define SOUND_MASK_CD           (1 << SOUND_MIXER_CD)
 774 #define SOUND_MASK_IMIX         (1 << SOUND_MIXER_IMIX)
 775 #define SOUND_MASK_ALTPCM       (1 << SOUND_MIXER_ALTPCM)
 776 #define SOUND_MASK_RECLEV       (1 << SOUND_MIXER_RECLEV)
 777 #define SOUND_MASK_IGAIN        (1 << SOUND_MIXER_IGAIN)
 778 #define SOUND_MASK_OGAIN        (1 << SOUND_MIXER_OGAIN)
 779 #define SOUND_MASK_LINE1        (1 << SOUND_MIXER_LINE1)
 780 #define SOUND_MASK_LINE2        (1 << SOUND_MIXER_LINE2)
 781 #define SOUND_MASK_LINE3        (1 << SOUND_MIXER_LINE3)
 782 
 783 #define SOUND_MASK_MUTE         (1 << SOUND_MIXER_MUTE)
 784 #define SOUND_MASK_ENHANCE      (1 << SOUND_MIXER_ENHANCE)
 785 #define SOUND_MASK_LOUD         (1 << SOUND_MIXER_LOUD)
 786 
 787 #define MIXER_READ(dev)         _IOR('M', dev, int)
 788 #define SOUND_MIXER_READ_VOLUME         MIXER_READ(SOUND_MIXER_VOLUME)
 789 #define SOUND_MIXER_READ_BASS           MIXER_READ(SOUND_MIXER_BASS)
 790 #define SOUND_MIXER_READ_TREBLE         MIXER_READ(SOUND_MIXER_TREBLE)
 791 #define SOUND_MIXER_READ_SYNTH          MIXER_READ(SOUND_MIXER_SYNTH)
 792 #define SOUND_MIXER_READ_PCM            MIXER_READ(SOUND_MIXER_PCM)
 793 #define SOUND_MIXER_READ_SPEAKER        MIXER_READ(SOUND_MIXER_SPEAKER)
 794 #define SOUND_MIXER_READ_LINE           MIXER_READ(SOUND_MIXER_LINE)
 795 #define SOUND_MIXER_READ_MIC            MIXER_READ(SOUND_MIXER_MIC)
 796 #define SOUND_MIXER_READ_CD             MIXER_READ(SOUND_MIXER_CD)
 797 #define SOUND_MIXER_READ_IMIX           MIXER_READ(SOUND_MIXER_IMIX)
 798 #define SOUND_MIXER_READ_ALTPCM         MIXER_READ(SOUND_MIXER_ALTPCM)
 799 #define SOUND_MIXER_READ_RECLEV         MIXER_READ(SOUND_MIXER_RECLEV)
 800 #define SOUND_MIXER_READ_IGAIN          MIXER_READ(SOUND_MIXER_IGAIN)
 801 #define SOUND_MIXER_READ_OGAIN          MIXER_READ(SOUND_MIXER_OGAIN)
 802 #define SOUND_MIXER_READ_LINE1          MIXER_READ(SOUND_MIXER_LINE1)
 803 #define SOUND_MIXER_READ_LINE2          MIXER_READ(SOUND_MIXER_LINE2)
 804 #define SOUND_MIXER_READ_LINE3          MIXER_READ(SOUND_MIXER_LINE3)
 805 #define SOUND_MIXER_READ_MUTE           MIXER_READ(SOUND_MIXER_MUTE)
 806 #define SOUND_MIXER_READ_ENHANCE        MIXER_READ(SOUND_MIXER_ENHANCE)
 807 #define SOUND_MIXER_READ_LOUD           MIXER_READ(SOUND_MIXER_LOUD)
 808 
 809 #define SOUND_MIXER_READ_RECSRC         MIXER_READ(SOUND_MIXER_RECSRC)
 810 #define SOUND_MIXER_READ_DEVMASK        MIXER_READ(SOUND_MIXER_DEVMASK)
 811 #define SOUND_MIXER_READ_RECMASK        MIXER_READ(SOUND_MIXER_RECMASK)
 812 #define SOUND_MIXER_READ_STEREODEVS     MIXER_READ(SOUND_MIXER_STEREODEVS)
 813 #define SOUND_MIXER_READ_CAPS           MIXER_READ(SOUND_MIXER_CAPS)
 814 
 815 #define MIXER_WRITE(dev)                _IOWR('M', dev, int)
 816 #define SOUND_MIXER_WRITE_VOLUME        MIXER_WRITE(SOUND_MIXER_VOLUME)
 817 #define SOUND_MIXER_WRITE_BASS          MIXER_WRITE(SOUND_MIXER_BASS)
 818 #define SOUND_MIXER_WRITE_TREBLE        MIXER_WRITE(SOUND_MIXER_TREBLE)
 819 #define SOUND_MIXER_WRITE_SYNTH         MIXER_WRITE(SOUND_MIXER_SYNTH)
 820 #define SOUND_MIXER_WRITE_PCM           MIXER_WRITE(SOUND_MIXER_PCM)
 821 #define SOUND_MIXER_WRITE_SPEAKER       MIXER_WRITE(SOUND_MIXER_SPEAKER)
 822 #define SOUND_MIXER_WRITE_LINE          MIXER_WRITE(SOUND_MIXER_LINE)
 823 #define SOUND_MIXER_WRITE_MIC           MIXER_WRITE(SOUND_MIXER_MIC)
 824 #define SOUND_MIXER_WRITE_CD            MIXER_WRITE(SOUND_MIXER_CD)
 825 #define SOUND_MIXER_WRITE_IMIX          MIXER_WRITE(SOUND_MIXER_IMIX)
 826 #define SOUND_MIXER_WRITE_ALTPCM        MIXER_WRITE(SOUND_MIXER_ALTPCM)
 827 #define SOUND_MIXER_WRITE_RECLEV        MIXER_WRITE(SOUND_MIXER_RECLEV)
 828 #define SOUND_MIXER_WRITE_IGAIN         MIXER_WRITE(SOUND_MIXER_IGAIN)
 829 #define SOUND_MIXER_WRITE_OGAIN         MIXER_WRITE(SOUND_MIXER_OGAIN)
 830 #define SOUND_MIXER_WRITE_LINE1         MIXER_WRITE(SOUND_MIXER_LINE1)
 831 #define SOUND_MIXER_WRITE_LINE2         MIXER_WRITE(SOUND_MIXER_LINE2)
 832 #define SOUND_MIXER_WRITE_LINE3         MIXER_WRITE(SOUND_MIXER_LINE3)
 833 #define SOUND_MIXER_WRITE_MUTE          MIXER_WRITE(SOUND_MIXER_MUTE)
 834 #define SOUND_MIXER_WRITE_ENHANCE       MIXER_WRITE(SOUND_MIXER_ENHANCE)
 835 #define SOUND_MIXER_WRITE_LOUD          MIXER_WRITE(SOUND_MIXER_LOUD)
 836 
 837 #define SOUND_MIXER_WRITE_RECSRC        MIXER_WRITE(SOUND_MIXER_RECSRC)
 838 
 839 /*
 840  * Level 2 event types for /dev/sequencer
 841  */
 842 
 843 /*
 844  * The 4 most significant bits of byte 0 specify the class of
 845  * the event: 
 846  *
 847  *      0x8X = system level events,
 848  *      0x9X = device/port specific events, event[1] = device/port,
 849  *              The last 4 bits give the subtype:
 850  *                      0x02    = Channel event (event[3] = chn).
 851  *                      0x01    = note event (event[4] = note).
 852  *                      (0x01 is not used alone but always with bit 0x02).
 853  *             event[2] = MIDI message code (0x80=note off etc.)
 854  *
 855  */
 856 
 857 #define EV_SEQ_LOCAL            0x80
 858 #define EV_TIMING               0x81
 859 #define EV_CHN_COMMON           0x92
 860 #define EV_CHN_VOICE            0x93
 861 #define EV_SYSEX                0x94
 862 /*
 863  * Event types 200 to 220 are reserved for application use.
 864  * These numbers will not be used by the driver.
 865  */
 866 
 867 /*
 868  * Events for event type EV_CHN_VOICE
 869  */
 870 
 871 #define MIDI_NOTEOFF            0x80
 872 #define MIDI_NOTEON             0x90
 873 #define MIDI_KEY_PRESSURE       0xA0
 874 
 875 /*
 876  * Events for event type EV_CHN_COMMON
 877  */
 878 
 879 #define MIDI_CTL_CHANGE         0xB0
 880 #define MIDI_PGM_CHANGE         0xC0
 881 #define MIDI_CHN_PRESSURE       0xD0
 882 #define MIDI_PITCH_BEND         0xE0
 883 
 884 #define MIDI_SYSTEM_PREFIX      0xF0
 885 
 886 /*
 887  * Timer event types
 888  */
 889 #define TMR_WAIT_REL            1       /* Time relative to the prev time */
 890 #define TMR_WAIT_ABS            2       /* Absolute time since TMR_START */
 891 #define TMR_STOP                3
 892 #define TMR_START               4
 893 #define TMR_CONTINUE            5
 894 #define TMR_TEMPO               6
 895 #define TMR_ECHO                8
 896 #define TMR_CLOCK               9       /* MIDI clock */
 897 #define TMR_SPP                 10      /* Song position pointer */
 898 #define TMR_TIMESIG             11      /* Time signature */
 899 
 900 /*
 901  *      Local event types
 902  */
 903 #define LOCL_STARTAUDIO         1
 904 
 905 #if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS) 
 906 /*
 907  *      Some convenience macros to simplify programming of the
 908  *      /dev/sequencer interface
 909  *
 910  *      These macros define the API which should be used when possible.
 911  */
 912 
 913 #ifndef USE_SIMPLE_MACROS
 914 void seqbuf_dump(void); /* This function must be provided by programs */
 915 
 916 /* Sample seqbuf_dump() implementation:
 917  *
 918  *      SEQ_DEFINEBUF (2048);   -- Defines a buffer for 2048 bytes
 919  *
 920  *      int seqfd;              -- The file descriptor for /dev/sequencer.
 921  *
 922  *      void
 923  *      seqbuf_dump ()
 924  *      {
 925  *        if (_seqbufptr)
 926  *          if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 927  *            {
 928  *              perror ("write /dev/sequencer");
 929  *              exit (-1);
 930  *            }
 931  *        _seqbufptr = 0;
 932  *      }
 933  */
 934 
 935 #define SEQ_DEFINEBUF(len)              unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
 936 #define SEQ_USE_EXTBUF()                extern unsigned char _seqbuf[]; extern int _seqbuflen;extern int _seqbufptr
 937 #define SEQ_DECLAREBUF()                SEQ_USE_EXTBUF()
 938 #define SEQ_PM_DEFINES                  struct patmgr_info _pm_info
 939 #define _SEQ_NEEDBUF(len)               if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
 940 #define _SEQ_ADVBUF(len)                _seqbufptr += len
 941 #define SEQ_DUMPBUF                     seqbuf_dump
 942 #else
 943 /*
 944  * This variation of the sequencer macros is used just to format one event
 945  * using fixed buffer.
 946  * 
 947  * The program using the macro library must define the following macros before
 948  * using this library.
 949  *
 950  * #define _seqbuf               name of the buffer (unsigned char[]) 
 951  * #define _SEQ_ADVBUF(len)      If the applic needs to know the exact
 952  *                               size of the event, this macro can be used.
 953  *                               Otherwise this must be defined as empty.
 954  * #define _seqbufptr            Define the name of index variable or 0 if
 955  *                               not required. 
 956  */
 957 #define _SEQ_NEEDBUF(len)       /* empty */
 958 #endif
 959 
 960 #define PM_LOAD_PATCH(dev, bank, pgm)   (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 961                                         _pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
 962                                         _pm_info.parm1 = bank, _pm_info.parm2 = 1, \
 963                                         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 964 #define PM_LOAD_PATCHES(dev, bank, pgm) (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
 965                                         _pm_info.device=dev, memcpy(_pm_info.data.data8, pgm, 128), \
 966                                         _pm_info.parm1 = bank, _pm_info.parm2 = 128, \
 967                                         ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
 968 
 969 #define SEQ_VOLUME_MODE(dev, mode)      {_SEQ_NEEDBUF(8);\
 970                                         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
 971                                         _seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
 972                                         _seqbuf[_seqbufptr+2] = (dev);\
 973                                         _seqbuf[_seqbufptr+3] = (mode);\
 974                                         _seqbuf[_seqbufptr+4] = 0;\
 975                                         _seqbuf[_seqbufptr+5] = 0;\
 976                                         _seqbuf[_seqbufptr+6] = 0;\
 977                                         _seqbuf[_seqbufptr+7] = 0;\
 978                                         _SEQ_ADVBUF(8);}
 979 
 980 /*
 981  * Midi voice messages
 982  */
 983 
 984 #define _CHN_VOICE(dev, event, chn, note, parm) \
 985                                         {_SEQ_NEEDBUF(8);\
 986                                         _seqbuf[_seqbufptr] = EV_CHN_VOICE;\
 987                                         _seqbuf[_seqbufptr+1] = (dev);\
 988                                         _seqbuf[_seqbufptr+2] = (event);\
 989                                         _seqbuf[_seqbufptr+3] = (chn);\
 990                                         _seqbuf[_seqbufptr+4] = (note);\
 991                                         _seqbuf[_seqbufptr+5] = (parm);\
 992                                         _seqbuf[_seqbufptr+6] = (0);\
 993                                         _seqbuf[_seqbufptr+7] = 0;\
 994                                         _SEQ_ADVBUF(8);}
 995 
 996 #define SEQ_START_NOTE(dev, chn, note, vol) \
 997                 _CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
 998 
 999 #define SEQ_STOP_NOTE(dev, chn, note, vol) \
1000                 _CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
1001 
1002 #define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
1003                 _CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
1004 
1005 /*
1006  * Midi channel messages
1007  */
1008 
1009 #define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
1010                                         {_SEQ_NEEDBUF(8);\
1011                                         _seqbuf[_seqbufptr] = EV_CHN_COMMON;\
1012                                         _seqbuf[_seqbufptr+1] = (dev);\
1013                                         _seqbuf[_seqbufptr+2] = (event);\
1014                                         _seqbuf[_seqbufptr+3] = (chn);\
1015                                         _seqbuf[_seqbufptr+4] = (p1);\
1016                                         _seqbuf[_seqbufptr+5] = (p2);\
1017                                         *(short *)&_seqbuf[_seqbufptr+6] = (w14);\
1018                                         _SEQ_ADVBUF(8);}
1019 /*
1020  * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
1021  * sending any MIDI bytes but it's absolutely not possible. Trying to do
1022  * so _will_ cause problems with MPU401 intelligent mode).
1023  *
1024  * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be 
1025  * sent by calling SEQ_SYSEX() several times (there must be no other events
1026  * between them). First sysex fragment must have 0xf0 in the first byte
1027  * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
1028  * between these sysex start and end markers cannot be larger than 0x7f. Also
1029  * lengths of each fragments (except the last one) must be 6.
1030  *
1031  * Breaking the above rules may work with some MIDI ports but is likely to
1032  * cause fatal problems with some other devices (such as MPU401).
1033  */
1034 #define SEQ_SYSEX(dev, buf, len) \
1035                                         {int i, l=(len); if (l>6)l=6;\
1036                                         _SEQ_NEEDBUF(8);\
1037                                         _seqbuf[_seqbufptr] = EV_SYSEX;\
1038                                         for(i=0;i<l;i++)_seqbuf[_seqbufptr+i+1] = (buf)[i];\
1039                                         for(i=l;i<6;i++)_seqbuf[_seqbufptr+i+1] = 0xff;\
1040                                         _SEQ_ADVBUF(8);}
1041 
1042 #define SEQ_CHN_PRESSURE(dev, chn, pressure) \
1043                 _CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
1044 
1045 #define SEQ_SET_PATCH(dev, chn, patch) \
1046                 _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
1047 
1048 #define SEQ_CONTROL(dev, chn, controller, value) \
1049                 _CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
1050 
1051 #define SEQ_BENDER(dev, chn, value) \
1052                 _CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
1053 
1054 
1055 #define SEQ_V2_X_CONTROL(dev, voice, controller, value) {_SEQ_NEEDBUF(8);\
1056                                         _seqbuf[_seqbufptr] = SEQ_EXTENDED;\
1057                                         _seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
1058                                         _seqbuf[_seqbufptr+2] = (dev);\
1059                                         _seqbuf[_seqbufptr+3] = (voice);\
1060                                         _seqbuf[_seqbufptr+4] = (controller);\
1061                                         *(short *)&_seqbuf[_seqbufptr+5] = (value);\
1062                                         _seqbuf[_seqbufptr+7] = 0;\
1063                                         _SEQ_ADVBUF(8);}
1064 /*
1065  * The following 5 macros are incorrectly implemented and obsolete.
1066  * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
1067  */
1068 #define SEQ_PITCHBEND(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
1069 #define SEQ_BENDER_RANGE(dev, voice, value) SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
1070 #define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
1071 #define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
1072 #define SEQ_PANNING(dev, voice, pos) SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
1073 
1074 /*
1075  * Timing and syncronization macros
1076  */
1077 
1078 #define _TIMER_EVENT(ev, parm)          {_SEQ_NEEDBUF(8);\
1079                                         _seqbuf[_seqbufptr+0] = EV_TIMING; \
1080                                         _seqbuf[_seqbufptr+1] = (ev); \
1081                                         _seqbuf[_seqbufptr+2] = 0;\
1082                                         _seqbuf[_seqbufptr+3] = 0;\
1083                                         *(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
1084                                         _SEQ_ADVBUF(8);}
1085 
1086 #define SEQ_START_TIMER()               _TIMER_EVENT(TMR_START, 0)
1087 #define SEQ_STOP_TIMER()                _TIMER_EVENT(TMR_STOP, 0)
1088 #define SEQ_CONTINUE_TIMER()            _TIMER_EVENT(TMR_CONTINUE, 0)
1089 #define SEQ_WAIT_TIME(ticks)            _TIMER_EVENT(TMR_WAIT_ABS, ticks)
1090 #define SEQ_DELTA_TIME(ticks)           _TIMER_EVENT(TMR_WAIT_REL, ticks)
1091 #define SEQ_ECHO_BACK(key)              _TIMER_EVENT(TMR_ECHO, key)
1092 #define SEQ_SET_TEMPO(value)            _TIMER_EVENT(TMR_TEMPO, value)
1093 #define SEQ_SONGPOS(pos)                _TIMER_EVENT(TMR_SPP, pos)
1094 #define SEQ_TIME_SIGNATURE(sig)         _TIMER_EVENT(TMR_TIMESIG, sig)
1095 
1096 /*
1097  * Local control events
1098  */
1099 
1100 #define _LOCAL_EVENT(ev, parm)          {_SEQ_NEEDBUF(8);\
1101                                         _seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
1102                                         _seqbuf[_seqbufptr+1] = (ev); \
1103                                         _seqbuf[_seqbufptr+2] = 0;\
1104                                         _seqbuf[_seqbufptr+3] = 0;\
1105                                         *(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
1106                                         _SEQ_ADVBUF(8);}
1107 
1108 #define SEQ_PLAYAUDIO(devmask)          _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
1109 /*
1110  * Events for the level 1 interface only 
1111  */
1112 
1113 #define SEQ_MIDIOUT(device, byte)       {_SEQ_NEEDBUF(4);\
1114                                         _seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
1115                                         _seqbuf[_seqbufptr+1] = (byte);\
1116                                         _seqbuf[_seqbufptr+2] = (device);\
1117                                         _seqbuf[_seqbufptr+3] = 0;\
1118                                         _SEQ_ADVBUF(4);}
1119 
1120 /*
1121  * Patch loading.
1122  */
1123 #define SEQ_WRPATCH(patchx, len)                {if (_seqbufptr) seqbuf_dump();\
1124                                         if (write(seqfd, (char*)(patchx), len)==-1) \
1125                                            perror("Write patch: /dev/sequencer");}
1126 #define SEQ_WRPATCH2(patchx, len)       (seqbuf_dump(), write(seqfd, (char*)(patchx), len))
1127 
1128 #endif
1129 #endif

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